Zais Watch Chrono, antimagnetic, from the 1930s–1940s, featuring a beautiful 37mm Art Deco case with a stainless steel caseback and Art Deco-style movable lugs; a rare and original black gilt dial with gold graphics, displaying a spectacular patina of age; olive-shaped chronograph pushers; and an original plastic crystal with a central magnifying lens to enlarge the spiral tachymeter scale. Landeron Hahn manual-winding mechanical movement with column wheel. The watch is in excellent overall condition and works perfectly; sold with a dark brown leather strap for fixed lugs.